CUBIT and seismic wave propagation based upon the Spectral-Element Method: An advanced unstructured mesher for complex 3D geological media

Emanuele Casarotti, Marco Stupazzini, Shiann Jong Lee, Dimitri Komatitsch, Antonio Piersanti, Jeroen Tromp

Research output: Chapter in Book/Report/Conference proceedingConference contribution

36 Scopus citations

Abstract

Unstructured hexahedral mesh generation is a critical part of the modeling process in the Spectral-Element Method (SEM). We present some examples of seismic wave propagation in complex geological models, automatically meshed on a parallel machine based upon CUBIT (Sandia Laboratory, cubit.sandia.gov), an advanced 3D unstructured hexahedral mesh generator that offers new opportunities for seismologist to design, assess, and improve the quality of a mesh in terms of both geometrical and numerical accuracy. The main goal is to provide useful tools for understanding seismic phenomena due to surface topography and subsurface structures such as low wave-speed sedimentary basins. Our examples cover several typical geophysical problems: 1) "layer-cake" volumes with high-resolution topography and complex solidsolid interfaces (such as the Campi Flegrei Caldera Area in Italy), and 2) models with an embedded sedimentary basin (such as the Taipei basin in Taiwan or the Grenoble Valley in France).

Original languageEnglish (US)
Title of host publicationProceedings of the 16th International Meshing Roundtable, IMR 2007
Pages579-597
Number of pages19
DOIs
StatePublished - Dec 1 2008
Event16th International Meshing Roundtable, IMR 2007 - Seattle, WA, United States
Duration: Oct 14 2007Oct 17 2007

Publication series

NameProceedings of the 16th International Meshing Roundtable, IMR 2007

Other

Other16th International Meshing Roundtable, IMR 2007
CountryUnited States
CitySeattle, WA
Period10/14/0710/17/07

All Science Journal Classification (ASJC) codes

  • Computer Science (miscellaneous)
  • Modeling and Simulation

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    Casarotti, E., Stupazzini, M., Lee, S. J., Komatitsch, D., Piersanti, A., & Tromp, J. (2008). CUBIT and seismic wave propagation based upon the Spectral-Element Method: An advanced unstructured mesher for complex 3D geological media. In Proceedings of the 16th International Meshing Roundtable, IMR 2007 (pp. 579-597). (Proceedings of the 16th International Meshing Roundtable, IMR 2007). https://doi.org/10.1007/978-3-540-75103-8_32